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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PHPUnit\Util;
use const DIRECTORY_SEPARATOR;
use function array_diff;
use function array_keys;
use function fopen;
use function get_defined_vars;
use function sprintf;
use function stream_resolve_include_path;
/**
* @internal This class is not covered by the backward compatibility promise for PHPUnit
*/
final class FileLoader
{
/**
* Checks if a PHP sourcecode file is readable. The sourcecode file is loaded through the load() method.
*
* As a fallback, PHP looks in the directory of the file executing the stream_resolve_include_path function.
* We do not want to load the Test.php file here, so skip it if it found that.
* PHP prioritizes the include_path setting, so if the current directory is in there, it will first look in the
* current working directory.
*
* @throws Exception
*/
public static function checkAndLoad(string $filename): string
{
$includePathFilename = stream_resolve_include_path($filename);
$localFile = __DIR__ . DIRECTORY_SEPARATOR . $filename;
if (!$includePathFilename ||
$includePathFilename === $localFile ||
!self::isReadable($includePathFilename)) {
throw new Exception(
sprintf('Cannot open file "%s".' . "\n", $filename),
);
}
self::load($includePathFilename);
return $includePathFilename;
}
/**
* Loads a PHP sourcefile.
*/
public static function load(string $filename): void
{
$oldVariableNames = array_keys(get_defined_vars());
/**
* @noinspection PhpIncludeInspection
*
* @psalm-suppress UnresolvableInclude
*/
include_once $filename;
$newVariables = get_defined_vars();
foreach (array_diff(array_keys($newVariables), $oldVariableNames) as $variableName) {
if ($variableName !== 'oldVariableNames') {
$GLOBALS[$variableName] = $newVariables[$variableName];
}
}
}
/**
* @see https://github.com/sebastianbergmann/phpunit/pull/2751
*/
private static function isReadable(string $filename): bool
{
return @fopen($filename, 'r') !== false;
}
}
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